Improvement in rotary engines



G. MURRAY, Jr. Rotary-Engine.

No. 221,599. Patented Nov. 11, 1879.

ATTORNEYS.

UNITED STATES PATENT OFFICE.

GEORGE MURRAY, JR, OF GAMBRIDGEPORT, MASSACHUSETTS.

IMPROVEMENT IN ROTARY ENGINES.

Specification forming part of Letters Patent No- 221,599, dated November11, 1879 application filed June 11, 1879.

To all whom it may concern:

Be it known that I, GEORGE MURRAY, J r., of Oambridgeport, in the countyof Middlesex and State of Massachusetts, have invented a top or cover.Fig. 3 is a plan of the running part of the device drawn out in ahorizontal plane. Fig. 4 is a sectional elevation of the shell or globeof the motor.

Similar letters of reference indicate corresponding parts.

The object of this invention is to provide a novel and simple devicethat can be used as a steam or hydraulic engine to transmit power, or asa force-pump or blowerwhen power is applied to it.

The invention consists, essentially, of a universal joint with solidsections fitted snugly, but so as to revolve within a globular shell.

In the drawings, A is the cylinder, globe, or shell in, which revolvesthe universal joint B, that serves as a piston when the device is usedas an engine or'pump, and as a fan or fans when used as a blower. Eachhalf of the globe is flanged, that they may be held together by thebolts a, and each half is furnished with steam or exhaust ports oringress and egress ports b, that extend from the inside of the shell .tothe connecting covered chambers c, that are on the outside against theflanges (1, while connected with each channel is a pipe, f. The wholedevice is supported by standards 0 on the bed-plate D.

To the central portion, E, of the revolving part of the device arehinged at right angles to each other, and on its opposite sides, the twoother sections, F, and all these parts are solid from their centers orpoints of junction ,to their peripheries. From the apex of each sectionF projects a shaft, G, which is journaled in the flanges of the globe,and on the end of one shaft is a collar, 9, fitting close against theflanges, while the other extends farther outward, and is supported bythe pillow-block H, and carries on it the pulley I. These shafts are setat an obtuse angle to each other.

When the device is to be used as an engine or pump the periphery orouter edge of each section will be furnished with a packing ring orstrip extending entirely around it, in order to make a tight jointagainst the steam or water with which the engine or pump may be worked.

When used as an engine the steam or water will be introduced through oneof the pipes f, and pass into the shell through one of itsconnecting-ports I), and exhaust through the port-s in the opposite halfof the shell, and as the moving parts revolve under the pressure they,in turn, close and open one or the other of the ingress and egress portsin the same manner or with the same efl'ect as does the valve of anengine.

When used as a pump and driven by power applied to the pulley the waterwill be drawn in through either the upper or' lower pipe, f, and ejectedby the other pipe f, and when run as a blower the air will be drawn inand forced out in like manner. For instance, steam entering thepipef(shown in Fig. 1) will find the left-hand port indicated by dotted linesclosed by one of the sections F, and will consequently enter through theright-hand one into the space h, and at the same time the left-hand exitor exhaust-port in theupper part of the shell will be found open and theright-hand one closed, and as the parts revolve the open ports areclosed and the closed ones opened and steam taken into the space 0, andso the motion continues.

Having thus described my invention, Iclaini as new and desire to secureby Letters Patent- A rotary engine consisting of the globular shell A,provided with ports I), covered channels c. flanges d, and pipes f, theuniversal joint B, whose sections are solid, standards 0, bed-plate D,shaft G, pillow-block H, and pulley I, constructed and arrangedsubstantially as herein shown, and for the purposes described.

GEORGE MURRAY, JR.

Witnesses:

JOHN MILES MURRAY, EDGAR SMITH.

